HSSC CET Group-D Exam 21.10.2023 (Shift-II)

The non-metal from the following is sulphur.
● Non-metals are elements that do not have the properties of metals.
● They are typically poor conductors of heat and electricity, and they are not malleable or ductile.
● Non-metals are also often found in gases or liquids.

● Chloroplast : Leaf
● Rhizobium : Legume plant
● Cuscuta : Parasitic plant
● Pitcher plant : Insectivorous plant

Typhoid : Bacteria
● Hepatitis A : Virus
● Malaria : Protozoa
● Wheat rust : Fungus

The speed of a body is the distance it covers per unit time. In this case, the body covers 100 km in 5 hours. Therefore, its speed is:

● Speed = Distance / Time = 100 km / 5 hours = 20 km/ hour

Silver is the best conductor of heat and electricity.
● Silver is a metal that is known for its excellent thermal conductivity.
● This means that it is very good at transferring heat.
● Silver is often used in heat sinks and other applications where heat transfer is important.
● Aluminium is also a good conductor of heat, but it is not as good as silver.
● Wood and kerosene are poor conductors of heat.

Night blindness is caused due to the deficiency of vitamin A (Retiol).
● Vitamin A is essential for the production of rhodopsin, a pigment in the retina that helps us to see in low light.
● When we are deficient in vitamin A, we have less rhodopsin, which makes it difficult to see in low light conditions.

Cockroaches breathe through a network of air tubes called trachea.
● These trachea are connected to small openings on the sides of the cockroach’s body called spiracles.
● Oxygen enters the cockroach’s body through the spiracles and diffuses through the trachea to the body’s tissues.
● Carbon dioxide diffuses from the body’s tissues to the trachea and exits the body through the spiracles.

Malaria is a parasitic disease, not a deficiency disease.
● Deficiency diseases are caused by a lack of essential nutrients in the diet.
● Malaria is caused by the Plasmodium parasite, which is transmitted to humans through the bite of an infected mosquito.
● Common deficiency diseases include:
❖ Anaemia (iron deficiency)
❖ Goitre (iodine deficiency)
❖ Scurvy (vitamin C deficiency)
❖ Rickets (vitamin D deficiency)
❖ Beriberi (vitamin B₁ deficiency)
❖ Pellagra (vitamin B₃ deficiency)

The planet which appears reddish in colour is Mars.
● It is also known as the Red Planet because of the iron oxide (Fe₂O₃) in its soil.
● phobos and Deimos are the Satellite of Marsh planet.
● Venus is covered in a thick cloud layer, which makes it appear white or yellow.
● Earth is blue because of the water in its oceans and atmosphere.
● Mercury is a gray color because of the lack of atmosphere.

● Small Intestine : Absorption of food
● Large Intestine : Formation of faeces
● Stomach : Churning of food 
● Mouth : Chewing of food